Should she face the death penalty?

It was a good idea to send Teresa to the death penalty. If you think about it most criminals are very smart so just guessing that she purposely failed the IQ test so she would seem stupid and maybe be insistent. Also she supposedly killed two people and if you have killed someone do you really deserve to live? But at the same time it's a little confusing because she could have also been manipulated into yes, but she still did and that's wrong right?